Identification and genetic characterization of Contracaecum sp.(Nematoda:Anisakidae)from China  

作　　者：Qingxun ZHANG Meng MENG Chengmei HUANG Shengyong FENG Jie LIU Yan TANG Yu FAN Guohui YUAN Shuyi HAN Jing LUO Baohua ZHAO Hongxuan HE 

机构地区：[1]National Research Center for Wildlife-Borne Diseases,Institute of Zoology,Chinese Academy of Sciences,Beijing,China [2]University of Chinese Academy of Sciences,Beijing,China [3]College of Wildlife Resources,Northeast Forestry University,Haerbin,Heilongjiang,China [4]China Wildlife Conservation Association,Beijing,China [5]Hebei Normal University,Shijiazhuang,Hebei,China

出　　处：《Integrative Zoology》2021年第6期929-938,共10页整合动物学（英文版）

基　　金：This study was financially supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA19050204);Beijing Innovation Consortium of Agriculture Research System(BAIC04-2021);National Forestry and Grassland Administration,China,and Beijing Wildlife Rescue Center,China.

摘　　要：Contracaecum species are economically important fish-borne larval nematodes with zoonotic significance.In June 2019,more than 100 piscivorous birds died in their habitats close to the Wild Duck Lake,located in Yanqing,northwest of Beijing,China.Post-mortem examination of Black Night Herons(Nycticorax)revealed the presence of numerous anisakid nematodes in the proventriculus.Recovered nematodes were identified as Contracaecum sp.based on morphological description.Phylogenetic analysis of the mitochondrial(mt)genome and the ITS gene showed that sequences of Contracaecum sp.Beijing isolates were grouped into a new individual cluster.Furthermore,the parasite was successfully isolated from fresh dead birds,feces of piscivorous birds,and fish and prevalence ranged from 8.0%to 81.8%.Consequently,our study demonstrated Contracaecum sp.infections in different sources from China,which might constitute a threat to wildlife,aquaculture,and public health.

关 键 词：Anisakid EPIDEMIOLOGY MORPHOLOGY phylogenetic analysis 

分 类 号：Q95[生物学—动物学]